Recurring payments with arbitrary amounts and at arbitrary times?
问题 We'd like to find a payment provider that lets us do something similar to Hailo, ie: Users sign up and give us their credit card details/authorise us to charge their account. They only need to do this once . In Hailo's case, users might take a cab journey at any time and be billed any amount (within reason). In our case, users might need a job done at any time, again with an invoice for an arbitrary amount. So ideally we'd be able to charge users accounts at any time, for any amount, without